PROBLEM TO BE SOLVED: To provide a method capable of producing cis-1-amino-4-hydroxymethyl-2-cyclopentene or its salt with high selectivity and a high yield by using inexpensive reactants easily handleable.
SOLUTION: Cis-1-amino-4-hydroxymethyl-2-cyclopentene represented by formula (II) or its salt is produced by mixing a cis-4-amino-2-cyclopentene-1-carboxylic ester salt represented by general formula (I) (wherein R1is an optionally substituted alkyl, cycloalkyl, alkenyl, alkynyl, aryl, or aralkyl group; and A is an inorganic or organic acid residue) with a metal boron hydride complex compound under the condition that the stoichiometric ratio of the amount of the metal boron hydride complex compound to the amount of the cis-4-amino-2-cyclopentene-1-carboxylic ester salt is 1-10.
COPYRIGHT: (C)2006,JPO&NCIPI
需要解决的问题:提供一种能够使用廉价易处理的反应物高选择性和高收率地生产顺式-1-氨基-4-羟甲基-2-环戊烯或其盐的方法。
解决方案:通过将通式(I)表示的顺式-4-氨基-2-环戊烯-1-羧酸酯盐(其中R1是可选取代的烷基、环烷基、烯基、炔基、芳基或芳烷基;A是无机或有机酸残基)与金属硼氢化合物复合物混合,在金属硼氢化合物复合物的量与顺式-4-氨基-2-环戊烯-1-羧酸酯盐的量的化学计量比为1-10的条件下,制备由式(II)表示的顺式-1-氨基-4-羟甲基-2-环戊烯或其盐。
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